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I am currently working towards a PhD in microbial genetics. Before that I spent a bit over a decade working as a programmer, with most of that time spent writing computer games. I have degrees in Mathematics (MMath), Life Sciences (BSc) and Molecular Genetics (MSc).


Aug
13
comment Why is oxygen needed for the electron transfer phosphorylation?
@GreekFellows: It depends on the anaerobic process you're thinking about. In anaerobic respiration there is a terminal receptor and electron transfer; however the majority (I think) of anaerobic energy production is not respiration but rather the shortened process you are thinking of.
Aug
12
revised Why is oxygen needed for the electron transfer phosphorylation?
added 1 character in body
Aug
12
answered Why is oxygen needed for the electron transfer phosphorylation?
Jul
30
comment “Same” DNA vs genes
It is not a duplicate of the marked question; that question only considers genes vs. DNA - this question asks about the conflict between 50% of genes being shared with siblings and 99% of DNA with chimps.
Jul
30
revised “Same” DNA vs genes
added 127 characters in body
Jul
29
comment “Same” DNA vs genes
Sorry, I should have specified: the bolded bit of the answer is completely and utterly wrong. In fact the sequence similarity between chimps and humans is higher for genes than for non-coding DNA as you should expect. The rest of the answer is fine.
Jul
29
answered “Same” DNA vs genes
Jul
29
comment “Same” DNA vs genes
The proportion of the genome that is coding has absolutely nothing to do with the answer to this question. The same conditions would hold for, say, yeast which has a much higher C-value.
Jul
24
awarded  Enlightened
Jul
24
awarded  Nice Answer
Jul
23
answered Dark veil when getting up too fast
Jul
14
comment Which phylum appeared most recently
Actually, I've decided I was wrong about most phyla being clearly paraphyletic. I think it's true, but we don't have the direct evidence needed for many phyla. The Echiura and Spinuncula group inside the Annelida.
Jul
14
revised Which phylum appeared most recently
Decided my addition was wrong.
Jul
14
revised Which phylum appeared most recently
added 390 characters in body
Jul
14
comment To what extent is it possible to understand if a bacteria can produce a protein? (in silico only!)
Are you talking about whether the Bacterium naturally produces a protein or whether it could express a particular protein?
Jul
14
answered Which phylum appeared most recently
May
23
answered What is the evolutionary reason behind human preference for salty foods?
May
20
revised How best to count bees entering and leaving a hive to measure hive activity?
edited title
May
20
comment Evolutionarily speaking, why do humans have 46 chromosomes
It seems to me this answers the 'how' question but not the 'why' question. I would guess the answer to 'why' is random chance but there could be a selective advantage? Is there any evidence either way?
May
10
revised Why are there exactly four nucleobases in DNA?
Added addendum about synthetic six base system